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【Python】Pythonの時間・時刻の取り扱い

Last updated at Posted at 2016-07-06

Pythonで時間・時刻データを取り扱う方法をいつも忘れるので備忘録。
気付いたら徐々に追加していきたい。

import datetime

ref_date = datetime.datetime(2016, 4, 1, 10, 10)
cur_date = datetime.datetime(2016, 5, 15, 12, 30)
出力結果
ref_date
2016-04-01 10:10:00

cur_date
2016-05-15 12:30:00

基準時刻(ref_date)からの累積時間。

delta = cur_date - ref_date
delta.total_seconds()
出力結果
3810000.0 # 時・分などが欲しいときは適宜割る

pandasを使って文字列から変換。

import pandas as pd
pd.to_datetime('2016-04-01 10:15:30')
出力結果
Timestamp('2016-04-01 10:15:30')
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